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12007657 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12007657: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 6150 OVERALL, hole_diameter: 1.440 INCHES NOMINAL1.440 INCHES NOMINAL IN, overall_height: 0.202 INCHES NOMINAL0.202 INCHES NOMINAL IN, hardness_rating: 44.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM48.0 ROCKWELL C MAXIMUM, outside_diameter: 2.370 INCHES NOMINAL2.370 INCHES NOMINAL IN, style_designator: SPRING TENSION. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-044-9561, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
12007657
NSN: 5310-01-044-9561
FSC: 5310 — Nuts and Washers
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL COMP 6150 OVERALL
hole_diameter1.440 INCHES NOMINAL1.440 INCHES NOMINAL IN
overall_height0.202 INCHES NOMINAL0.202 INCHES NOMINAL IN
hardness_rating44.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM48.0 ROCKWELL C MAXIMUM
outside_diameter2.370 INCHES NOMINAL2.370 INCHES NOMINAL IN
style_designatorSPRING TENSION
material_thickness0.181 INCHES NOMINAL0.181 INCHES NOMINAL IN
NSN5310-01-044-9561
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12007657 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HARDNESS RATING: 44.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM48.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPRING TENSION
•
OUTSIDE DIAMETER: 2.370 INCHES NOMINAL2.370 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.181 INCHES NOMINAL0.181 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 6150 OVERALL
•
HOLE DIAMETER: 1.440 INCHES NOMINAL1.440 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.202 INCHES NOMINAL0.202 INCHES NOMINAL IN
HARDNESS RATING44.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM48.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPRING TENSION
OUTSIDE DIAMETER2.370 INCHES NOMINAL2.370 INCHES NOMINAL IN
MATERIAL THICKNESS0.181 INCHES NOMINAL0.181 INCHES NOMINAL IN
MATERIALSTEEL COMP 6150 OVERALL
HOLE DIAMETER1.440 INCHES NOMINAL1.440 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12007657?
12007657 is a WASHER,SPRING TENSION.
What is the NSN for 12007657?
12007657 is cataloged in the U.S. Government catalog under NSN 5310-01-044-9561. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.